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. 1981 Jun;14(6):621-3.
doi: 10.1111/j.1365-2265.1981.tb02973.x.

The effect of propranolol on thyroid hormones in T3 toxicosis

M K Jones, D R Owens, G R Jones, J Birtwell

The effect of propranolol on thyroid hormones in T3 toxicosis

M K Jones et al. Clin Endocrinol (Oxf). 1981 Jun.

Abstract

Serum thyroid hormone concentrations were measured before and during 6 months treatment with propranolol (160 mg/day) in eight patients with T3 (triiodothyronine) toxicosis. Serum total T3 concentrations showed a significant (p less than 0.01) and sustained fall to approximately 80% of pre-treatment values. Six of the patients, however, remained clinically and biochemically hyperthyroid and our data do not support the use of propranolol as sole therapy in T3 toxicosis.

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